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JAMES PAIK MD
NPI 1275114290
Pathology - Anatomic Pathology & Clinical Pathology in Chicago, IL

Active since April 20, 2021PECOS Enrolled
5841 S MARYLAND AVE # 3083, CHICAGO, IL 60637(773) 834-7708(773) 834-7644 Get Directions Write a Review

NPPES record last updated: July 17, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jul 17, 2026, Jun 28, 2021, Apr 20, 2021 (3 updates tracked since 2021).

About James Paik Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JAMES PAIK MD (NPI 1275114290) is an individual anatomic pathology & clinical pathology provider in Chicago, Illinois, licensed in Illinois (036168731) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275114290
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameJAMES PAIKCredential: MD
Location Address5841 S MARYLAND AVE # 3083Chicago, IL 60637-1443
Mailing Address150 Harvester Dr Ste 300Burr Ridge, IL 60527-5965
Phone(773) 834-7708
Fax(773) 834-7644
Sole ProprietorNo
Enumeration DateApril 20, 2021
Last NPPES UpdateJuly 17, 20263 updates tracked since enumeration
NPPES CertifiedJuly 17, 2026
✔ NPI 1275114290 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in IL · 036168731
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
5841 S MARYLAND AVE # 3083, Chicago, IL 60637
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

James Paik Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show James Paik reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

The University Of Chicago Medical Center
Same address
General Acute Care Hospital
5841 S MARYLAND AVE
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 1,905 clinicians in this Medicare group
NPI 1033218128 (773) 702-1530
University Of Chicago
Same address
Multi-Specialty
5841 S MARYLAND AVE, UCPG/MC 1099
Chicago, IL 60637
  • Reassigned Medicare billing, Illinois enrollment
  • 2,237 clinicians in this Medicare group
NPI 1821048786 (773) 702-9200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60637 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SOPHIA ROSE PASSARO
Student in an Organized Health Care Education/Training Program
5841 S MARYLAND AVE # 3083
CHICAGO, IL 60637
Cook County (773) 834-9667
ANGELICA MORAN
Pathology (Clinical Pathology)
5841 S MARYLAND AVE # 3083
CHICAGO, IL 60637
Cook County (773) 702-1000
TRENT DAVIDS MD
Pathology (Anatomic Pathology & Clinical Pathology)
5841 S MARYLAND AVE # 3083
CHICAGO, IL 60637
Cook County (773) 834-9667
DR. CHANDNI DESAI MD DDS
Pathology (Anatomic Pathology & Clinical Pathology)
5841 S MARYLAND AVE # 3083
CHICAGO, IL 60637
Cook County (773) 834-7708

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is James Paik's NPI number?

The NPI number for James Paik is 1275114290. It was assigned to this individual provider in the NPPES registry on April 20, 2021.

Where is James Paik located?

James Paik practices at 5841 S Maryland Ave # 3083, Chicago, IL 60637. The listed phone number is (773) 834-7708.

What is James Paik's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is James Paik enrolled in Medicare?

Yes. James Paik is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for James Paik's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Paik reassigns Medicare benefits to 2 organizations: The University Of Chicago Medical Center (Chicago, IL) and University Of Chicago (Chicago, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Paik's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for James Paik was last updated on July 17, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.